Winding and unwinding structure for battery production

Abstract

The utility model relates to the technical field of battery production, and discloses a winding and unwinding structure for battery production, which comprises a bottom plate, the outer wall of the bottom plate is fixedly connected with a stand column, the outer wall of the stand column is fixedly connected with a winding and unwinding motor, and the output end of the winding and unwinding motor penetrates through the stand column and is fixedly connected with a winding roller. And a straightening assembly is arranged above the bottom plate. According to the winding and unwinding structure for battery production, pressing wheels on the two sets of fixing shells make contact with a thin film through an electric push rod, the thin film is pulled to be kept flat, meanwhile, a limiting motor drives a bidirectional lead screw to rotate, a sliding base drives a limiting block to move, and therefore the limiting block can limit the thin film according to the width of the thin film; and the rubber ring enables the pressing wheel to drive the limiting block to rotate, so that the limiting block and the film are relatively static, the film is prevented from making contact with the limiting block to generate wrinkles, and the film winding and unwinding effect is better.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, specifically to a winding and unwinding structure for battery production. Background Technology

[0002] Battery film is a very important component of lithium batteries. During the production and processing of battery film, it needs to be wound up, which requires battery film winding equipment.

[0003] According to a public announcement (CN221093079U) regarding a lithium battery production winding anti-deviation device, the present invention features a second winding roller rotatably mounted between the left ends of a second horizontal plate. A second drive motor is fixedly mounted on the second horizontal plate outside the second winding roller. A crossbeam is fixedly mounted on the right side of the first horizontal plate, and a U-shaped frame plate with a right opening is fixedly mounted at the right end of the crossbeam. A fixing block is provided in the U-shaped frame plate, and a first pin is provided through the fixing block from top to bottom in the U-shaped frame plate. The right end of the fixing block is fixedly connected to the left side of the fixing plate. A support member is fixedly mounted at the bottom of the crossbeam. In use, if the film deviates during winding when the second winding roller winds the film, the second winding roller can swing back and forth through the cooperation of the U-shaped frame plate and the fixing block to adjust its angle, thereby preventing damage to the film. The support member at the bottom provides auxiliary support, which is beneficial to the stability of winding.

[0004] However, in actual use, the above-mentioned equipment is difficult to straighten the film, which makes the film prone to wrinkles when winding. Once the film wrinkles during winding, it is easy to damage the film. In view of this, we propose a winding and unwinding structure for battery production. Utility Model Content

[0005] The purpose of this invention is to provide a winding and unwinding structure for battery production, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a winding and unwinding structure for battery production, comprising a base plate, a column fixedly connected to the outer wall of the base plate, a winding and unwinding machine fixedly connected to the outer wall of the column, the output end of the winding and unwinding machine penetrating the column and fixedly connected to a winding roller, and a straightening assembly disposed above the base plate, the straightening assembly comprising:

[0007] An electric actuator is fixedly connected to the upper outer wall of the base plate. A fixed housing is fixedly connected to the output end of the electric actuator. A pressure roller is rotatably connected to the inner wall of the fixed housing. A limit motor is fixedly connected to the outer wall of the fixed housing.

[0008] A bidirectional lead screw is fixedly connected to the output end of the fixed housing of a limit motor. A slide block is threadedly connected to the outer wall of the bidirectional lead screw, and a slider is fixedly connected to the outer wall of the slide block.

[0009] A limiting block is sleeved on the outer wall of the pressure roller. The outer wall of the limiting block has a sliding groove, and the inner wall of the limiting block is fixedly connected with a rubber ring.

[0010] Preferably, there are two sets of straightening components, which are arranged in a linear array on the outer wall of the base plate. The distance between the winding roller and the two sets of straightening components is the same. The pressure rollers on the two sets of fixed shells are moved by an electric push rod, so that the pressure rollers on one set of fixed shells are on top and the pressure rollers on the other set of fixed shells are on the bottom. The film passes through the pressure rollers on the two sets of fixed shells during winding and unwinding, and the pressure rollers can apply tension to the film.

[0011] Preferably, a lifting component is provided between the two sets of straightening components. The lifting component includes a vertical rod, which is fixedly connected to the outer wall of the base plate. A rotating shaft is fixedly connected to the inner wall of the vertical rod, and a connecting plate is rotatably connected to the outer wall of the rotating shaft. Rotary seats are rotatably connected to both ends of the connecting plate. The two sets of rotating seats are respectively fixedly connected to the output end of the electric push rod, so that the pressure rollers on the two sets of fixed shells can rise and fall by the same distance, thereby making the force applied by the pressure rollers to the film the same and making the film more uniformly stressed during winding and unwinding.

[0012] Preferably, the slider is configured as an I-shaped part, the slide groove is configured as an I-shaped groove, and the slider is slidably connected to the inner wall of the slide groove, so that the limiting block can contact the slide seat while rotating autonomously and is not easily disengaged, thereby enabling the slide seat to drive the limiting block to move on the pressure roller.

[0013] Preferably, the rotating shaft passes through the center of the connecting plate, and the upright is fixedly connected to the center of the two sets of straightening components. When the two sets of electric push rods drive the pressure rollers to move up and down respectively, the pressure rollers on the two sets of fixed shells at both ends of the connecting plate can rise and fall by the same distance respectively.

[0014] Preferably, pressure rollers are rotatably connected to both the upper and lower ends of the inner wall of the fixed shell, and limit blocks are slidably connected to both ends of the pressure rollers. The rubber ring is in contact with the outer wall of the limit block, and the friction between the rubber ring and the pressure roller is greater, so that the rotation of the pressure roller can drive the limit block to rotate. When the film moves on the pressure roller and comes into contact with the limit block, the limit block and the film remain relatively stationary.

[0015] Compared with the prior art, this utility model provides a winding and unwinding structure for battery production, which has the following beneficial effects:

[0016] 1. The battery production winding and unwinding structure uses an electric push rod to make the pressure rollers on both sets of fixed shells contact the film, so that the film is subjected to tension and kept flat. At the same time, the limit motor drives the bidirectional lead screw to rotate, so that the slide moves the limit block. This allows the limit block to limit the film according to the width of the film, preventing the film from tilting during winding and unwinding. The rubber ring causes the pressure roller to drive the limit block to rotate, so that the limit block and the film are relatively stationary, preventing the film from contacting the limit block and causing wrinkles, thus improving the winding and unwinding effect of the film.

[0017] 2. The winding and unwinding structure for battery production has rotating bases at both ends of the connecting plate that are fixedly connected to the output ends of the electric push rods, so that the pressure rollers on the two sets of fixed shells can rise and fall by the same distance, thereby applying the same force to the film by the pressure rollers, making the film more uniformly stressed during winding and unwinding, and improving the winding and unwinding effect of the film. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0019] Figure 2 This is an enlarged structural diagram of region A of this utility model;

[0020] Figure 3 This is a schematic diagram of the straightening component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the pressure roller structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the explosion structure of the pressure roller of this utility model.

[0023] In the diagram: 1. Base plate; 2. Column; 3. Retractor; 4. Retractor roller; 5. Straightening assembly; 51. Electric push rod; 52. Fixed shell; 53. Pressure roller; 54. Limit motor; 55. Two-way lead screw; 56. Slide seat; 57. Slider; 58. Limit block; 59. Slide groove; 510. Rubber ring; 6. Lifting assembly; 61. Upright; 62. Rotary shaft; 63. Connecting plate; 64. Rotary seat. Detailed Implementation

[0024] like Figures 1-5 As shown, this utility model provides a technical solution: a winding and unwinding structure for battery production, including a base plate 1, a column 2 fixedly connected to the outer wall of the base plate 1, a winding and unwinding machine 3 fixedly connected to the outer wall of the column 2, the output end of the winding and unwinding machine 3 passing through the column 2 and fixedly connected to a winding roller 4, and a straightening assembly 5 provided above the base plate 1, the straightening assembly 5 including an electric push rod 51, a fixed shell 52, a pressure roller 53, a limit motor 54, a bidirectional lead screw 55, a slide block 56, a slider 57, a limit block 58, a slide groove 59, and a rubber ring 510.

[0025] In one embodiment of this utility model, an electric actuator 51 is fixedly connected to the upper outer wall of the base plate 1, and a fixed housing 52 is fixedly connected to the output end of the electric actuator 51. A pressure roller 53 is rotatably connected to the inner wall of the fixed housing 52, and a limit motor 54 is fixedly connected to the outer wall of the fixed housing 52.

[0026] In one embodiment of this utility model, a bidirectional lead screw 55 is fixedly connected to the output end of the fixed housing 52 of the limit motor 54, and a slide block 56 is threadedly connected to the outer wall of the bidirectional lead screw 55. A slider 57 is fixedly connected to the outer wall of the slide block 56.

[0027] In one embodiment of the present invention, the limiting block 58 is sleeved on the outer wall of the pressure roller 53, the outer wall of the limiting block 58 is provided with a sliding groove 59, and the inner wall of the limiting block 58 is fixedly connected with a rubber ring 510.

[0028] In addition, there are two sets of straightening components 5. The two sets of straightening components 5 are arranged in a straight line array on the outer wall of the base plate 1. The distance between the winding roller 4 and the two sets of straightening components 5 is the same. The electric push rod 51 drives the pressure rollers 53 on the two sets of fixed shells 52 to move, so that the pressure rollers 53 on one set of fixed shells 52 are on top and the pressure rollers 53 on the other set of fixed shells 52 are on the bottom. When the film is wound up and unwound, it passes through the pressure rollers 53 on the two sets of fixed shells 52 respectively. At this time, the pressure rollers 53 can apply tension to the film, so that the film can remain flat during winding up and unwound, thereby improving the winding and unwinding effect of the film.

[0029] In an embodiment of this utility model, a lifting component 6 is provided between the two sets of straightening components 5. The lifting component 6 includes a vertical rod 61, which is fixedly connected to the outer wall of the base plate 1. A rotating shaft 62 is fixedly connected to the inner wall of the vertical rod 61. A connecting plate 63 is rotatably connected to the outer wall of the rotating shaft 62. Both ends of the connecting plate 63 are rotatably connected to a rotating seat 64. The two sets of rotating seats 64 are respectively fixedly connected to the output end of the electric push rod 51, so that the pressure rollers 53 on the two sets of fixed shells 52 can rise and fall by the same distance, so that the pressure rollers 53 apply the same force to the film, making the film more uniformly stressed during winding and unwinding, and improving the winding and unwinding effect of the film.

[0030] In this embodiment of the utility model, the slider 57 is configured as an I-shaped part, the slide groove 59 is configured as an I-shaped groove, and the slider 57 is slidably connected to the inner wall of the slide groove 59, so that the limiting block 58 can rotate autonomously and contact the slide seat 56 without easily disengaging, thereby enabling the slide seat 56 to drive the limiting block 58 to move on the pressure roller 53 to limit the film and prevent the film from tilting during winding and unwinding, thus improving the winding and unwinding effect of the film.

[0031] In this embodiment of the utility model, the rotating shaft 62 passes through the center of the connecting plate 63, and the upright 61 is fixedly connected to the center of the two sets of straightening components 5. When the two sets of electric push rods 51 drive the pressure rollers 53 to move up and down respectively, the pressure rollers 53 on the two sets of fixed shells 52 at both ends of the connecting plate 63 can rise and fall by the same distance respectively, so that the film is subjected to uniform force.

[0032] In this embodiment of the present invention, pressure rollers 53 are rotatably connected to both the upper and lower ends of the inner wall of the fixed shell 52, and limit blocks 58 are slidably connected to both ends of the pressure rollers 53. The rubber ring 510 is in contact with the outer wall of the limit block 58, and the friction between the rubber ring 510 and the pressure roller 53 is greater, so that the rotation of the pressure roller 53 can drive the limit block 58 to rotate. When the film moves on the pressure roller 53 and comes into contact with the limit block 58, the limit block 58 and the film are relatively stationary, so that the film does not wrinkle due to contact with the limit block 58, and the winding and unwinding effect of the film is better.

[0033] In this invention, during use, the film is contacted with two sets of pressure rollers 53 and then fixed with the winding roller 4. During winding and unwinding, the winding motor 3 is activated to control the rotation of the winding roller 4. At this time, the winding and unwinding control electric push rod 51 of the winding roller 4 can make the pressure rollers 53 on both sets of fixing shells 52 contact the film, so that the film is subjected to tension and thus keeps it flat. At the same time, the limit motor 54 drives the bidirectional lead screw 55 to rotate, so that the slide 56 drives the limit block 58 to move, so that the limit block 58 can limit the film according to the width of the film, preventing the film from being damaged during winding and unwinding. When the film tilts, the rubber ring 510 causes the pressure roller 53 to rotate, which in turn drives the limiting block 58 to rotate. This keeps the limiting block 58 relatively stationary with respect to the film, preventing the film from contacting the limiting block 58 and causing wrinkles. This improves the film winding and unwinding effect. At this time, the rotating seats 64 at both ends of the connecting plate 63 are fixedly connected to the output end of the electric push rod 51, so that the pressure rollers 53 on the two sets of fixed shells 52 can rise and fall by the same distance. This makes the force applied by the pressure rollers 53 to the film the same, so that the film is subjected to more uniform force during winding and unwinding, and the film winding and unwinding effect is better.

[0034] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A winding and unwinding structure for battery production, comprising a base plate (1), wherein a column (2) is fixedly connected to the outer wall of the base plate (1), a winding and unwinding machine (3) is fixedly connected to the outer wall of the column (2), and the output end of the winding and unwinding machine (3) passes through the column (2) and is fixedly connected to a winding roller (4), characterized in that: The upper side of the bottom plate (1) is provided with a straightening assembly (5), which comprises: An electric push rod (51) is fixedly connected to the upper end of the outer wall of the bottom plate (1), and the output end of the electric push rod (51) is fixedly connected with a fixed shell (52), the inner wall of the fixed shell (52) is rotatably connected with a pressure roller (53), and the outer wall of the fixed shell (52) is fixedly connected with a limiting motor (54); A bidirectional screw rod (55) is fixedly connected to the output end of the fixed shell (52) of the limiting motor (54), and the outer wall of the bidirectional screw rod (55) is threadedly connected with a sliding seat (56), and the outer wall of the sliding seat (56) is fixedly connected with a sliding block (57); A limiting block (58) is sleeved on the outer wall of the pressure roller (53), and the outer wall of the limiting block (58) is provided with a sliding groove (59), and the inner wall of the limiting block (58) is fixedly connected with a rubber ring (510).

2. The winding and unwinding structure for battery production according to claim 1, characterized in that: The number of the straightening assembly (5) is two, and the two straightening assemblies (5) are arranged in a linear array on the outer wall of the bottom plate (1), and the distance between the three is consistent.

3. The winding and unwinding structure for battery production according to claim 2, characterized in that: Two groups of the straightening assembly (5) are provided with a lifting assembly (6), the lifting assembly (6) comprises a vertical rod (61), the vertical rod (61) is fixedly connected to the outer wall of the bottom plate (1), the inner wall of the vertical rod (61) is fixedly connected with a rotating shaft (62), the outer wall of the rotating shaft (62) is rotatably connected with a connecting plate (63), both ends of the connecting plate (63) are rotatably connected with a rotating seat (64), and two groups of the rotating seat (64) are respectively fixedly connected with the output end of the electric push rod (51).

4. The winding and unwinding structure for battery production according to claim 1, characterized in that: The sliding block (57) is arranged in an I-shaped form, the sliding groove (59) is arranged in an I-shaped groove, and the sliding block (57) is slidably connected with the inner wall of the sliding groove (59).

5. The winding and unwinding structure for battery production according to claim 3, characterized in that: The rotating shaft (62) penetrates the center of the connecting plate (63), and the vertical rod (61) is fixedly connected at the center of the two groups of the straightening assembly (5).

6. The winding and unwinding structure for battery production according to claim 1, characterized in that: The upper and lower ends of the inner wall of the fixed shell (52) are rotatably connected with the pressure roller (53), both ends of the pressure roller (53) are slidably connected with the limiting block (58), and the rubber ring (510) is attached to the outer wall of the limiting block (58).

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